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3 years ago

According to the generally question for conditional probability if P(AnB) = 5/7 and P(B) = 7/8 what is P(A|B)?

1 answer:

3 0

Hi!

P(A|B) means the probability A will happen given B has happened. P(AnB) is the probability both will happen, and P(B) is the probability B will happen.

You can figure out a formula from that, but here's the generally accepted one:

P(A|B) = P(AnB) / P(B)

P(AnB) = 5/7
P(B) = 7/8

Substitute values in:

P(A|B) = 5/7 / 7/8

P(A|B) = 5/7 * 8/7

P(A|B) = 40/49

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morpeh [17]

Answer:

5 11/13km

Step-by-step explanation:

4 ( 1 6/13)

4× 19/13

= 5 11/13

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2 years ago

2\%2%2, percent of the students at Hamilton Middle School have red hair. There are 700700700 students at Hamilton Middle School.

Andrew [12]

Answer:

14 students at Hamilton Middle School have red hair.

Step-by-step explanation:

Given:

2%, percent of the students at Hamilton Middle School have red hair.

There are 700 students at Hamilton Middle School.

Now, to find the number of students at Hamilton Middle School having red hair.

Total number of students = 700.

Percent of the students at Hamilton Middle School have red hair = 2%.

Now, to get the number of students at Hamilton Middle School having red hair:

$2\%\ of\ 700\\\\=\frac{2}{100} \times 700\\\\=0.02\times 700\\\\=14.$

Therefore, 14 students at Hamilton Middle School have red hair.

3 0

3 years ago

Read 2 more answers

Aryon has $15. He buys 2 Cokes that each cost $1.00. He also buys a

fenix001 [56]

15.00-5.00-2.00-2.00= $6.00

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3 years ago

Identify which of the following statement(s) is always true?

julia-pushkina [17]

Answer:

Statement 3

Step-by-step explanation:

Statement 1: For any positive integer n, the square root of n is irrational.

Suppose n = 25 (25 is positive integer), then

$\sqrt{n}=\sqrt{25}=5$

Since 5 is rational number, this statement is false.

Statement 2: If n is a positive integer, the square root of n is rational.

Suppose n = 8 (8 is positive integer), then

$\sqrt{n}=\sqrt{8}=2\sqrt{2}$

Since $2\sqrt{2}$ is irrational number, this statement is false.

Statement 3: If n is a positive integer, the square root of n is rational if and only if n is a perfect square.

If n is a positive integer and square root of n is rational, then n is a perfect square.

If n is a positive integer and n is a perfect square, then square root of n is a rational number.

This statement is true.

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3 years ago

Can you please Help me with this? (Greatly Appreciated)

exis [7]

Answer:

x=4²-((3×2)÷2)

x=13

Step-by-step explanation:

assuming this is a right triangle (90dgr)

area of the square... a×a

area of the right triangle..= (width×height) ÷2

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4 years ago